Strainer.



Patented Apr. 29, I902. W. JONES.

ST R A l N EB.

(Application filed Sept. 23, 1901.\

(No Model.)

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UNITED STATE-s PATENT OFFICE.

YVILLARD JONES, OF LISBON, MAINE.

STRAINER.

SPECIFICATION forming part of Letters Patent No. 698,961, dated April29, 1902. Application filed September 23, 1901. Serial No. 76,176. (Nomodel.)

T0 to whom, it may concern.-

Be it known that I, WILLARD JONES, a citizen of the United States ofAmerica, .and a resident of Lisbon, Androscoggin county, Maine,haveinvented certain new and useful Improvements in Funnels, of which thefollowing is a specification.

My invention relates to a straining and filtering attachment to beapplied to funnels such as are used for filling bottles and othervessels having narrow necks.

The attachment consists, essentially, of a tube extending down into thespout of the funnel and provided with suitable means for making a tightconnection therewith, said tube having on its upper end a hollowstrainer preferably made separable, so that it may be more readily takenapart and cleaned.

The invention further consists of certain features applied to saidstrainer whereby it may be converted into a filter, said features beinghereinafter set forth in the specification and claimed in the claims.

I illustrate my invention by means of the accompanying drawings, inwhich- Figure 1 represents a vertical section through a funnel fittedwith my attachment as used for filtering. Fig. 2 is a horizontal sectionon the line m w of Fig. 1. Fig. 3 is a vertical section showing thedevice used as a combined strainer and filter, and Fig. 4 is a likesection showing the device as a strainer.

Similar reference-letters will be used in the various figures toindicate like parts.

A represents a funnel of ordinary construction having a spout a. Whenthe device is to be used as a simple strainer, I make use of the formshown in Fig. 4. In this case the tube 0 extends from the funnel properdown into the spout a, and means are provided for making a tightconnection between the tube and the upper end of the spout. The meanshere shown consist of a plug or stopper 1), preferably of rubber, havinga central perforation through which the tube passes." Connecting withthe upper end of the tube is a hollow strainer 71, here shown'as conicaland having a removable cover j. It will be seen that this strainer maybe readily inserted and taken out and that it may be easily taken apartto be cleaned.

When it is desired to use the device for the purposes of a filter, Iapply to the upper portion of the' hollow strainer 61 (see Fig. 1) animperforate top, here shown as a cap f, with a horizontal perforateddiaphragm g placed between the perforate and imperforate portionsof thestrainer, so as to divide the interior into an upper and a lowerchamber. The tube 0 extends from then pper chamber down into the spout,passingthrough the diaphragm and the lower end of the conical strainerand forming a tight connection with the spout by means of the stopper b.In the lower chamber and surrounding the tube 0 is a quantity offiltering material a, which may be powdered charcoal or any othersuitable substance. The diaphragm g is held in place by means of threeprojections g, which extend out from the inner surface of the conicalstrainer. In order to insert and remove it, I form a notch g in oneedge, and by placing the edge of the diaphragm under two of theprojections and allowing the notch to come over the other projection thediaphragm may be put in place. To retainitin place, it is then slightlyturned to the position shown in Fig. 2.

The operation of my filter is evident from its construction. The liquidto be filtered is poured into the funnel and passes down around theoutside of the strainer and thence up through the filtering material tothe upper chamber above the diaphragm and so on down through the tube.It will be seen that the liquid before it turns to enter the filteringmaterial has to make an upward turn and change its direction, so thatmuch of the sus= pended materialwill be deposited in the fun= nel justabove the spout.

In Fig. 3 I show an arrangement whereby the device fitted-up as a filtermay be used inside of one used as a strainer by inserting the spout O-of the filter in the upper end of the spout *L' of the strainer andmaking'the former considerably smaller than the latter.

Instead of making use ofa rubber stopper for forming a tight connectionbetween the tube and the'spout of the funnel the two may be otherwiseconnected to make a tight j oint-'- as, for instance, by soldering thetube directly tothe spout.

I claim-- v y 1. The combination with a funnel, of a hol rcd lowstrainer therein having an iinperforate upper portion, a perforateddiaphragm between the perforate and imperforate portions of the strainerand a tube passing through said diaphragm and connecting the space aboveit with the spout of the funnel and making a tight connection with saidspout.

2. The combination with a funnel, of a hollow strainer therein having animperforate upper portion, a perforated diaphragm between the perforateand imperforate portions of the strainer, a tube passing through saiddiaphragm and connecting the space above it with the spout of the funneland a stopper surrounding said tube for making a tight joint with thespout.

3. The combination with'a funnel of a conical strainer therein having animperforate cap on its upper end, a perforated diaphragm below said capand a tube passing through said diaphragm and connecting the space aboveit with the spout of the funnel and making a tight connection therewith.

4. The combination with a funnel of a conical strainer therein having anarched or convex imperforate cap, a perforated diaphragm at the top ofthe conical portion of the strainer and below said cap, a tube leadingfrom said diaphragm and connecting the space above it with the spout ofthe funnel and a stopper surrounding said tube for forming a tight jointwith the spout.

5. The combination with a funnel of a conical strainer therein having anarched or convex imperforate cap, a perforated diaphragm between theconical portion of the strainer and the cap forming an upper and a lowerchamber, a tube leading from the upper chamber through the diaphragm andthe lower chamber and into the spout of the funnel, a stoppersurrounding said tube for forming a tight joint withthe spout andfiltering material filling the lower chamber.

Signed atBoston, Massachusetts, this 20th day of September, 1901.

WILLARD JONES.

itnesses:

ALICE J. MURRAY, FREDK. K. DAGGETT.

